// import * as THREE from './js/three.module.js';
// // import {OrbitControls} from './js/OrbitControls.js';
// import TWEEN from './js/tween.esm.js';
// const TWEEN = require('@tweenjs/tween.esm.js')

let camera, scene, renderer,controls,material,mesh;
let isAutoPlay = false,model = 'full' // full/menu
let delta =0, millis = 0
let timeIds=[]; // double click
var timeStart,timeEnd,timeLongPress; // long press
let is_key_down = false,key_down_frequency = 0;
let is_pc = false

const LONG_PRESS_TIMES = 3

let loader=null;
let materialArray=null;
var container;

const house ={
    // curr_id:2,
    idx:0,
    // direction:'B',
    nextId:null,
    isLoading:false,
    numLoaded:0,
    texture:{
        id:-1,
        curr:null,
        next:null,
        isloading:false,
    },
    config:{
        lat_step:10,
        lon_step:10,
    },
    title:"南京世茂项目",
    src:[
    {id:1,name:"01frontGate",title:'01正门',home:{T:50,R:70},view:{lat:-0.825, lon:19.875},image:"panos/01frontGate.png",
    L:{id:14,angle:{lat: -10, lon: 16.3},offset:180},R:{id:25,angle:{lat: -13.7, lon: 75.3},offset:-70},F:null,B:null,LF:null,
    LB:null,RF:null,RB:null,
    spots:[{id:14,name:'14',position:{x: 230, y: -60, z: 50},rotate:{x:Math.PI/2,y:0,z:0},scale:{x:1,y:1,z:1},angle:{lat: -10, lon: 16.3},offset:180},
    {id:25,name:'25',position:{x: -90, y: -60, z: -30},rotate:{x:Math.PI/2,y:0,z:0},scale:{x:1,y:1,z:1},angle:{lat: -13.7, lon: 75.3},offset:-70}]},
    {id:2,name:"02masterBedroom",title:'02主卧',home:{T:83,R:45},view:{lat: -7.8000000000000025 ,lon: 180},image:"panos/02masterBedroom.png",
    L:null,R:{id:4,angle:{lat: -9.5, lon: 50},offset:180},F:{id:6,angle:{lat: -4, lon: -77},offset:-90},B:{id:3,angle:{lat: -3.7, lon: 0.5},
    offset:0},LF:null,LB:null,RF:null,RB:null,
    },
    {id:3,name:"03masterBedroom",title:'03主卧',home:{T:85,R:36},view:{lat: -2.5500000000000007 ,lon: 110.1},
    image:"panos/03masterBedroom.png",L:null,R:{id:4,angle:{lat: -13.6, lon: 54},offset:180},F:{id:2,angle:{lat: 2.7, lon: 16.7},
    offset:90},B:null,LF:null,LB:null,RF:null,RB:null,
    },

    {id:4,name:"04masterBedroom",title:'04主卧',home:{T:75,R:30},view:{lat: -4.425 ,lon: 219.52499999999998},
    image:"panos/04masterBedroom.png",L:null,R:{id:3,angle:{lat: 0, lon: 13.5},offset:0},F:null,B:{id:2,angle:{lat: 3, lon: 17.1},offset:90},
    LF:null,LB:null,RF:null,RB:null,
    },

    {id:5,name:"05masterBedroomToilet",title:'05主卧卫生间',home:{T:60,R:30},view:{lat: -4.725 ,lon: 97.125},
    image:"panos/05masterBedroomToilet.png",L:null,R:null,F:{id:7,angle:{lat: -13, lon: 50},offset:0},B:null,LF:null,LB:null,
    RF:null,RB:null,
    },

    {id:6,name:"06masterBedroomPorch",title:'06主卧门廊',home:{T:66,R:45},view:{lat: -10.124999999999998 ,lon: 93.225},
    image:"panos/06masterBedroomPorch.png",L:null,R:{id:25,angle:{lat: -10, lon: 150},offset:-75},F:{id:2,angle:{lat: -6.5, lon: -86},
    offset:90},B:{id:7,angle:{lat: -2, lon: 146},offset:35},LF:null,LB:null,RF:null,RB:null,
    },

    {id:7,name:"07masterBedroomCloakroom",title:'07主卧衣帽间',home:{T:60,R:48},view:{lat: -9.750000000000002 ,lon: 326.62499999999994},
    image:"panos/07masterBedroomCloakroom.png",L:{id:6,angle:{lat: 1.9, lon: 86},offset:-90},R:null,F:null,B:null,LF:null,LB:{id:6,
        angle:{lat: 1.9, lon: 86},offset:-90},RF:null,RB:{id:5,angle:{lat: -3.2, lon: -80},offset:0},
    },

    {id:8,name:"08AguestRoom",title:'08客房',home:{T:90,R:100},view:{lat: -6.0749999999999975 ,lon: 191.55},image:"panos/08AguestRoom.png",
    L:null,R:{id:9,angle:{lat: -4.5, lon: -48},offset:-90},F:null,B:null,LF:null,LB:null,RF:null,RB:null,
    },

    {id:9,name:"09guestRoomA",title:'09客房A',home:{T:80,R:90},view:{lat: -10.575000000000001 ,lon: 292.425},image:"panos/09guestRoomA.png",
    L:null,R:null,F:{id:8,angle:{lat: -5.7, lon: -25},offset:30},B:{id:10,angle:{lat: -6.4, lon: 187},offset:-90},LF:null,LB:null,RF:null,
    RB:null,
    },

    {id:10,name:"10guestRoomAToilet",title:'10客房卫生间',home:{T:70,R:100},view:{lat: -4.874999999999999 ,lon: 83.85},
    image:"panos/10guestRoomAToilet.png",L:null,R:null,F:{id:25,angle:{lat: 3.8, lon: -15},offset:-90},B:null,LF:null,LB:null,
    RF:null,RB:null,
    },
    {id:11,name:"11guestRoomB",title:'11客房B',home:{T:85,R:70},view:{lat: -5.8500000000000005 ,lon: 102.74999999999999},
    image:"panos/11guestRoomB.png",L:null,R:{id:12,angle:{lat: -2.8, lon: 17},offset:180},F:{id:25,angle:{lat: -7, lon: -118},offset:-60},
    B:null,LF:null,LB:{id:13,angle:{lat: -1.4, lon: -172},offset:160},RF:null,RB:null,
    },

    {id:12,name:"12guestRoomB",title:'12客房B',home:{T:80,R:60},view:{lat: -0.675000000000002 ,lon: 226.5},image:"panos/12guestRoomB.png",
    L:null,R:{id:11,angle:{lat: -10, lon: -43},offset:90},F:null,B:null,LF:null,LB:null,RF:null,RB:null,
    },
    {id:13,name:"13guestRoomB",title:'13客房B',home:{T:95,R:70},view:{lat: -6.149999999999997 ,lon: 10.500000000000016},
    image:"panos/13guestRoomB.png",L:{id:11,angle:{lat: -6, lon: 120},offset:60},R:null,F:null,B:null,LF:null,LB:null,RF:null,RB:null,
    },

    {id:14,name:"14livingRoom",title:'14客厅',home:{T:20,R:70},view:{lat: -4.2 ,lon: 38.475},image:"panos/14livingRoom.png",L:null,R:null,
    F:{id:16,angle:{lat: 1.4, lon: 80},offset:180},B:null,LF:{id:17,angle:{lat: -2.4, lon: 36},offset:150},LB:null,RF:{id:15,
        angle:{lat: -6, lon: 148},offset:130},RB:{id:1,angle:{lat: -2.1, lon: 187},offset:180},
       },

    {id:15,name:"15livingRoom",title:'15客厅',home:{T:30,R:50},view:{lat: -7.574999999999999 ,lon: 50.025},image:"panos/15livingRoom.png",
    L:null,R:null,F:null,B:null,LF:{id:16,angle:{lat: -7.2, lon: -13},offset:180},LB:{id:14,angle:{lat: 0, lon: -57},offset:150},
    RF:{id:22,angle:{lat: -1.4, lon: 73},offset:180},RB:{id:20,angle:{lat: 0, lon: 0},offset:0},
    },

    {id:16,name:"16livingRoom",title:'16客厅',home:{T:20,R:50},view:{lat: -7.199999999999999 ,lon: 170.92499999999998},
    image:"panos/16livingRoom.png",L:{id:19,angle:{lat: -2, lon: -3},offset:180},R:{id:15,angle:{lat: -3, lon: 230},offset:120},
    F:{id:22,angle:{lat: 4.5, lon: 119},offset:180},B:{id:14,angle:{lat: 2.5, lon: -80},offset:160},LF:{id:18,angle:{lat: -10, lon: -20},
    offset:-130},LB:{id:17,angle:{lat: 0, lon: 0},offset:160},RF:null,RB:null,
   },

    {id:17,name:"17livingRoom",title:'17客厅',home:{T:8,R:60},view:{lat: -7.125 ,lon: -1.5},image:"panos/17livingRoom.png",
    L:{id:23,angle:{lat: -1, lon: -236},offset:30},R:{id:16,angle:{lat: -8.2, lon: 178},offset:180},F:null,B:null,LF:{id:23,
        angle:{lat: -1.4, lon: -210},offset:80},LB:null,RF:{id:19,angle:{lat: -2, lon: 75},offset:180},RB:{id:14,
            angle:{lat: -6.3, lon: 221},offset:150},
    },

    {id:18,name:"18livingRoom",title:'18客厅',home:{T:8,R:40},view:{lat: -12.374999999999998 ,lon: 145.12499999999997},
    image:"panos/18livingRoom.png",L:null,R:null,F:null,B:null,LF:null,LB:{id:24,angle:{lat: -3, lon: -52},offset:-120},
    RF:{id:16,angle:{lat: 5.2, lon: 179},offset:180},RB:{id:19,angle:{lat: -1.2, lon: -81},offset:180},
    },
    {id:19,name:"19livingRoom",title:'19客厅',home:{T:8,R:50},view:{lat: -7.574999999999999 ,lon: 83.24999999999999},
    image:"panos/19livingRoom.png",L:null,R:{id:16,angle:{lat: -8.2, lon: 178},offset:180},F:{id:18,angle:{lat: -2, lon: 75},offset:180},
    B:{id:17,angle:{lat: -1.2, lon: -81},offset:180},LF:null,LB:{id:23,angle:{lat: -1, lon: -236},offset:0},RF:null,
    RB:{id:14,angle:{lat: -7, lon: 251},offset:120},
    },
    {id:20,name:"20livingRoom",title:'20客厅',home:{T:40,R:45},view:{lat: -4.35 ,lon: 16.34999999999999},
    image:"panos/20livingRoom.png",L:{id:21,angle:{lat: -0.6, lon: -117},offset:150},R:{id:15,angle:{lat: 2, lon: 55},offset:120},
    F:null,B:{id:22,angle:{lat: -1, lon: 70},offset:180},LF:null,LB:null,RF:{id:14,angle:{lat: -1.8, lon: -44},offset:180},RB:null,
    },
    {id:21,name:"21livingRoom",title:'21客厅',home:{T:42,R:55},view:{lat: -3.0749999999999993 ,lon: 64.350000},
    image:"panos/21livingRoom.png",L:null,R:null,F:{id:20,angle:{lat: 0, lon: -179},offset:0},B:null,LF:{id:20,angle:{lat: -1.1, lon: -190},
    offset:0},LB:null,RF:null,RB:null,
    },
    {id:22,name:"22livingRoom",title:'22客厅',home:{T:23,R:20},view:{lat: -8.475000000000001 ,lon: -135.674},
    image:"panos/22livingRoom.png",L:null,R:null,F:null,B:null,LF:null,LB:null,RF:null,RB:{id:20,angle:{lat: -2, lon: 84},offset:0},
    },
    {id:23,name:"23kitchen",title:'23厨房',home:{T:-5,R:65},view:{lat: -11.174999999999999 ,lon: 278},image:"panos/23kitchen.png",
    L:null,R:null,F:null,B:{id:17,angle:{lat: 0, lon: 165},offset:180},LF:null,LB:{id:17,angle:{lat: -5.7, lon: 197},offset:160},
    RF:null,RB:null,
    },
    {id:24,name:"24laundry",title:'24洗衣间',home:{T:-5,R:40},view:{lat: -2.099999999999999 ,lon: 139.79999},image:"panos/24laundry.png",
    L:null,R:null,F:null,B:null,LF:null,LB:null,RF:{id:18,angle:{lat: 1.3, lon: 152},offset:230},RB:null,
    },
    {id:25,name:"25frontGatePorch",title:'25前门门廊',home:{T:65,R:75},view:{lat: -6.675000000000004 ,lon: 248.7749999},
    image:"panos/25frontGatePorch.jpg",L:{id:6,angle:{lat: -6, lon: 47},offset:-90},R:{id:10,angle:{lat: 2.2, lon: -85},offset:180},
    F:{id:11,angle:{lat: -5, lon: -67},offset:60},B:{id:1,angle:{lat: 1.7, lon: 17},offset:180},LF:null,LB:null,
    RF:{id:9,angle:{lat: -10, lon: -230},offset:-90},RB:{id:1,angle:{lat: 0, lon: 0},offset:180},
    },
],
direction:[
    {id:1,name:"B",at:{x:0,y:0,z:-1}},
    {id:2,name:"F",at:{x:0,y:0,z:1}},
    {id:3,name:"R",at:{x:-1,y:0,z:0}},
    {id:4,name:"L",at:{x:1,y:0,z:0}},
    {id:5,name:"down",at:{x:0,y:1,z:0}},
    {id:6,name:"up",at:{x:0,y:-1,z:0}},
    {id:1,name:"LF",at:{x:1,y:0,z:1}},
    {id:2,name:"RF",at:{x:-1,y:0,z:1}},
    {id:3,name:"LB",at:{x:1,y:0,z:-1}},
    {id:4,name:"RB",at:{x:-1,y:0,z:-1}},
],
playList:{
    idx:0,
    orders:[
        {id:1},{id:14},{id:17},{id:23},{id:19},{id:24},{id:18},{id:16},{id:22},{id:20},{id:21},{id:15},
        {id:25},{id:2},{id:3},{id:4},{id:5},{id:6},{id:7},{id:8},{id:9},{id:10},{id:11},{id:12},
        {id:13}
    ]
},
menuList:[
    {id:1},{id:2},{id:5},{id:9},{id:12},{id:16},{id:20},{id:17},{id:14}
]
} 
var isUserInteracting = false,
    onMouseDownMouseX = 0,
    onMouseDownMouseY = 0,
    lon = 0,
    onMouseDownLon = 0,
    lat = 0,
    onMouseDownLat = 0,
    phi = 0,
    theta = 0;


    const spotGroup = new THREE.Group()

init();
animate();

function init() {

    container = document.getElementById('container');

    // camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 1, 1100);
    camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 5100);
    camera.target = new THREE.Vector3(0, 0, 0);

    scene = new THREE.Scene();

    // invert the geometry on the x-axis so that all of the faces point inward
    const geometry = new THREE.BoxGeometry(512, 512, 512);
    geometry.scale(-1, 1, 1);
    // if (!texture){

     // loader = new THREE.TextureLoader();
     loader = new THREE.TextureLoader().setPath('./panos/');

     const queryString = window.location.search;

    const urlParams = new URLSearchParams(queryString);

    const panoId = urlParams.get('id')?urlParams.get('id'):0

    const backurl = urlParams.get('backurl')?urlParams.get('backurl'):'pano3.html'


    house.idx = panoId

    house.backurl = backurl

        // var texture = new THREE.TextureLoader().load('images/02.png');
        const imgPath = house.src[house.idx].image

        // const texture = new THREE.TextureLoader().load(imgPath);
        const fileName = house.src[house.idx].name
        // const texture =  loader.load(
 
        //     // urls of images used in the cube texture
        //     [
        //         fileName+ '_b.png',
        //         fileName+ '_f.png',
        //         fileName+ '_u.png',
        //         fileName+ '_d.png', //d
        //         fileName+ '_l.png',
        //         fileName+ '_r.png',
        //     ])

        // // let loader2 = new THREE.TextureLoader().setPath('./panos/');
       materialArray = [
            new THREE.MeshBasicMaterial( { name:'f',map: loader.load(fileName+ '4k_f.jpg') } ),
            new THREE.MeshBasicMaterial( { name:'b',map: loader.load(fileName+ '4k_b.jpg') } ),
            new THREE.MeshBasicMaterial( { name:'u',map: loader.load(fileName+ '4k_u.jpg') } ),
            new THREE.MeshBasicMaterial( { name:'d',map: loader.load(fileName+ '4k_d.jpg') } ),
            new THREE.MeshBasicMaterial( { name:'l',map: loader.load(fileName+ '4k_l.jpg') } ),
            new THREE.MeshBasicMaterial( { name:'r',map: loader.load(fileName+ '4k_r.jpg') } ),
        ];

        setHomePosition()
    // }
    //
    // material = new THREE.MeshBasicMaterial({ envMap: texture});

    mesh = new THREE.Mesh(geometry, materialArray);

    scene.add(mesh);

    var light = new THREE.AmbientLight( 0x404040 ); // soft white light
    scene.add( light );

    renderer = new THREE.WebGLRenderer();
    renderer.setPixelRatio(window.devicePixelRatio);
    renderer.setSize(window.innerWidth, window.innerHeight);
    container.appendChild(renderer.domElement);

    // camera.position.set( 1000, 2000, 10 );

    window.camera=camera

    scene.add(spotGroup)

    initMenu()


    lat = house.src[house.idx].view.lat
    lon = house.src[house.idx].view.lon

    is_pc = IsPC()
 
    // controls = new OrbitControls( camera, renderer.domElement );
    // controls.update();

    // document.getElementById("map_img").addEventListener('mousedown', onPointerStart, false);
    
    document.addEventListener('mousedown', onPointerStart, false);
    document.addEventListener('mousemove', onPointerMove, false);
    document.addEventListener('mouseup', onPointerUp, false);

    document.addEventListener('wheel', onDocumentMouseWheel, false);

    document.addEventListener('touchstart', onPointerStart, false);
    document.addEventListener('touchmove', onPointerMove, false);
    document.addEventListener('touchend', onPointerUp, false);

    document.addEventListener('dblclick', onDbClickChange, false);

    //
   
    // document.addEventListener('dragover', function(event) {

    //     event.preventDefault();
    //     event.dataTransfer.dropEffect = 'copy';

    // }, false);

    // document.addEventListener('dragenter', function() {

    //     document.body.style.opacity = 0.5;

    // }, false);

    // document.addEventListener('dragleave', function() {

    //     document.body.style.opacity = 1;

    // }, false);

    // document.addEventListener('drop', function(event) {

    //     event.preventDefault();

    //     var reader = new FileReader();
    //     reader.addEventListener('load', function(event) {

    //         material.map.image.src = event.target.result;
    //         material.map.needsUpdate = true;

    //     }, false);
    //     reader.readAsDataURL(event.dataTransfer.files[0]);

    //     document.body.style.opacity = 1;

    // }, false);


    document.addEventListener('keydown', onKeyDown);
    document.addEventListener('keyup', onKeyUp);

    window.addEventListener('resize', onWindowResize, false);
}



function initMenu(){
    var menu=document.getElementById("menu");
    while (menu.firstChild) {
        menu.removeChild(menu.firstChild);
    }

    let mid = 0

    for(let item of house.menuList){
        const dpano = document.createElement("div");
        dpano.className = 'pano'
        // dpano.attr({'data-id':item.id}) 
        for(let i in house.src){
            if(house.src[i].id===item.id){
                mid = i
                break
            }
        }

        dpano.setAttribute('data-id',mid);
        const title = document.createElement("div");
        title.className = 'title'
        title.innerHTML = house.src[mid].title
        const thumb = document.createElement("div");
        thumb.className = 'thumb'
        // thumb.innerHTML = house.src[i].name
        const img=document.createElement("img");

        img.src= './panos/'+house.src[mid].name + '4k_b.jpg';

        thumb.appendChild(img);

        dpano.appendChild(title);
        dpano.appendChild(thumb);

        menu.appendChild(dpano);
    }

    const ddiv = document.createElement("div");
    ddiv.innerHTML='-'
    ddiv.className = 'panoEnd'
    menu.appendChild(ddiv);

    // var menuTitle=document.getElementById("menuTitle");
    // menuTitle.innerHTML = house.title

}

function walkingCamera(){
    const d = getCameraDirection()
    walkOn(d)
}

function zoomIn(){
    fov = camera.fov + 10
    fov = THREE.MathUtils.clamp(fov, 15, 75);
    if(fov!==camera.fov){
        updateCameraTo(fov)
    }
}

function zoomOut(){
    fov = camera.fov - 10
    fov = THREE.MathUtils.clamp(fov, 15, 75);
    if(fov!==camera.fov){
        updateCameraTo(fov)
    }
}

function displayMenu(){
    model = 'menu'
    document.getElementById("menu").style.display='flex';

    // document.getElementById("menuTitle").style.display='flex';

    // document.getElementById("menuTip").style.display='flex';
    // 

    // setTimeout( function(){
    //     document.getElementById("menuTip").style.display='none';
    // }, 5000 );


}

function doubleDelay(doubleCallback,callback,p){
    timeId = setTimeout( function(){
        if(Date.now()-delta<400){
            for(let i in timeIds){
                clearTimeout(timeIds[i])
            }
            // const d = getCameraDirection()
            // walkOn(d)
            if(doubleCallback){
                doubleCallback()
            }
        }else{
            // lookDirection(2)
            callback(p)
        }
    }, 400 );

    timeIds.push(timeId)
}

function onKeyDown(e){
    key_down_frequency++

    delta = Date.now() 

    if(key_down_frequency>LONG_PRESS_TIMES){

        switch(e.keyCode){
            case 38://ArrowUp
                lat +=1.5
                break
            case 40: //ArrowDown
                lat -=1.5
                break
            case 37: //ArrowLeft
                lon -= 1.5
                break
            case 39://ArrowRight
                lon += 1.5
                break
            case 13://Enter
                isAutoPlay = true
                break
            default:
                break
        }
    }
}



function onKeyUp(e){

    // console.log(e.keyCode)
    document.getElementById('debug').innerHTML +="<br>" +e.key + ' '+e.keyCode


    if(key_down_frequency<LONG_PRESS_TIMES){

        switch(e.keyCode){
            case 38://ArrowUp
                if(model==='full'){
                    doubleDelay(walkingCamera,lookDirection,2)
                }else if(model==='menu'){
                }
                break
            case 40: //ArrowDown
                if(model==='full'){
                    doubleDelay(null,lookDirection,1)

                }else if(model==='menu'){
                    const firstChild = document.getElementById('menu').firstChild
                    firstChild.className = 'panoSelect'
                }
                break
            case 37: //ArrowLeft
                if(model==='full'){

                    doubleDelay(zoomIn,lookDirection,3)

                }else if(model==='menu'){
                    let pano_select = -1
                    const nodess = document.getElementById("menu").childNodes;
                    for(let i =0;i<nodess.length-1;i++){
                        if(nodess[i].className==='panoSelect'){
                            pano_select=i===0?nodess.length -2:i-1
                            nodess[i].className = 'pano'
                            nodess[pano_select].className = 'panoSelect'

                            const fromLeft = document.getElementById('menu').scrollLeft
                            const toLeft = 270*pano_select;

                            const coords = {x: fromLeft, y: 0} // Start at (0, 0)
                            const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
                                .to({x: toLeft, y: 200}, 1000) // Move to (300, 200) in 1 second.
                                .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
                                .onUpdate(() => {
                                    // Called after tween.js updates 'coords'.
                                    // Move 'box' to the position described by 'coords' with a CSS translation.
                                    document.getElementById('menu').scrollLeft = coords.x
                                })
                                .start() // Start the tween immediately.

                            i = nodess.length
                            
                        } 
                    }
                }
                break
            case 39://ArrowRight
                if(model==='full'){

                    doubleDelay(zoomOut,lookDirection,4)

                }else if(model==='menu'){
                    let pano_select = -1
                    const nodess = document.getElementById("menu").childNodes;
                    for(let i =0;i<nodess.length-1;i++){
                        if(nodess[i].className==='panoSelect'){
                            pano_select=nodess.length-2===i?0:i+1
                            // document.getElementById('menu').scrollLeft =270*pano_select;

                            const fromLeft = document.getElementById('menu').scrollLeft
                            const toLeft = 270*pano_select;

                            const coords = {x: fromLeft, y: 0} // Start at (0, 0)
                            const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
                                .to({x: toLeft, y: 200}, 1000) // Move to (300, 200) in 1 second.
                                .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
                                .onUpdate(() => {
                                    // Called after tween.js updates 'coords'.
                                    // Move 'box' to the position described by 'coords' with a CSS translation.
                                    document.getElementById('menu').scrollLeft = coords.x
                                })
                                .start() // Start the tween immediately.

                            nodess[i].className = 'pano'
                            nodess[pano_select].className = 'panoSelect'
                            i = nodess.length
                        } 
                    }
                }
                break
            case 13://Enter
                if(model==='full'){

                    let pano_select = -1
                    const nodess = document.getElementById("menu").childNodes;
                    for(let i =0;i<nodess.length;i++){
                        if(nodess[i].className==='panoSelect'){
                            pano_select=nodess[i].getAttribute('data-id')
                            i = nodess.length
                        } 
                    }

                    if(pano_select===-1){
                        house.menu_control_select = 0
                        const firstChild = document.getElementById('menu').firstChild
                        firstChild.className = 'panoSelect'
                        document.getElementById('menu').scrollLeft = 0
                    }

                    doubleDelay(defaultCameraFov,displayMenu,null)

                }else if(model==='menu'){
                    model = 'full'
                    document.getElementById("menu").style.display='none';
                    // document.getElementById("menuTip").style.display='none';
                    // document.getElementById("menuTitle").style.display='none';
                    let pano_select = -1
                    const nodess = document.getElementById("menu").childNodes;
                    for(let i =0;i<nodess.length;i++){
                        if(nodess[i].className==='panoSelect'){
                            pano_select=nodess[i].getAttribute('data-id')
                            i = nodess.length

                            house.idx = pano_select
                        } 
                    }
                    autoUpdateMaterial(house.idx)
                }  
                break
            case 48: // auto play
                isAutoPlay = !isAutoPlay
                camera.fov = isAutoPlay?75:45
                camera.updateProjectionMatrix();

                var points=document.getElementById("redPoints");
                while (points.firstChild) {
                    points.removeChild(points.firstChild);
                }
                    
                break
            case 49:
                // document.getElementById('menu').scrollLeft+=270;

        
                break
            default:
                break
        }
        
    }

    key_down_frequency = 0
}


// function onKeyUp(e){

//     switch(e.keyCode){
//         case 38://ArrowUp
//             if(model==='full'){

//                // doubleDelay(walkingCamera,lookDirection,2)

//             }else if(model==='menu'){
                
//             }
            
//             break
//         case 40: //ArrowDown
//             if(model==='full'){
//                 //doubleDelay(null,lookDirection,1)

//             }else if(model==='menu'){
//                 // const firstChild = document.getElementById('menu').firstChild
//                 // firstChild.className = 'panoSelect'
//             }
//             break
//         case 37: //ArrowLeft
//             if(model==='full'){

//                 // doubleDelay(zoomIn,lookDirection,3)

//             }else if(model==='menu'){
//                 // let pano_select = -1
    
//                 // const nodess = document.getElementById("menu").childNodes;
//                 // for(let i =0;i<nodess.length;i++){
//                 //     if(nodess[i].className==='panoSelect'){
//                 //         pano_select=i===0?nodess.length -1:i-1
//                 //         nodess[i].className = 'pano'
//                 //         nodess[pano_select].className = 'panoSelect'

//                 //         document.getElementById('menu').scrollLeft =100*pano_select;

//                 //         i = nodess.length

                        
//                 //     } 
//                 // }
//             }
//             break
//         case 39://ArrowRight
//             if(model==='full'){

//                 // doubleDelay(zoomOut,lookDirection,4)

//             }else if(model==='menu'){
//                 // let pano_select = -1
//                 // const nodess = document.getElementById("menu").childNodes;
//                 // for(let i =0;i<nodess.length;i++){
//                 //     if(nodess[i].className==='panoSelect'){
//                 //         pano_select=nodess.length-1===i?0:i+1

//                 //         document.getElementById('menu').scrollLeft =100*pano_select;

//                 //         nodess[i].className = 'pano'
//                 //         nodess[pano_select].className = 'panoSelect'
//                 //         i = nodess.length

//                 //     } 
//                 // }
//             }
//             break
//         case 13://Enter
//             // single click
//             if(model==='full'){

//                 // doubleDelay(defaultCameraFov,displayMenu,null)

//             }else if(model==='menu'){

//                 // model = 'full'
//                 // document.getElementById("menu").style.display='none';
    
//                 // let pano_select = -1

//                 // const nodess = document.getElementById("menu").childNodes;
//                 // for(let i =0;i<nodess.length;i++){
//                 //     if(nodess[i].className==='panoSelect'){
//                 //         // console.log(nodess[i].getAttribute('data-id'),'hkkkkkkkkkkkkk' )
//                 //         // pano_select=i
//                 //         pano_select=nodess[i].getAttribute('data-id')
//                 //         i = nodess.length
//                 //     } 
//                 // }

//                 // house.idx  = pano_select

//                 // autoUpdateMaterial(house.idx)
//             }

//             break
//         case 48: // auto play

//             break

//         case 49: //`1`
//             break
//         default:
//             break
//     }

// }

function onWindowResize() {

    camera.aspect = window.innerWidth / window.innerHeight;
    camera.updateProjectionMatrix();

    renderer.setSize(window.innerWidth, window.innerHeight);

}

function pauseEvent(e){
    if(e.stopPropagation) e.stopPropagation();
    if(e.preventDefault) e.preventDefault();
    e.cancelBubble=true;
    e.returnValue=false;
    return false;
}

function onPointerStart(event) {

    isUserInteracting = true;

    if(is_pc){
        // pauseEvent(event)
    }

    // if(model==='menu'){
    //     
    // }

    var clientX = event.clientX || event.touches[0].clientX;
    var clientY = event.clientY || event.touches[0].clientY;

    onMouseDownMouseX = clientX;
    onMouseDownMouseY = clientY;

    onMouseDownLon = lon;
    onMouseDownLat = lat;

}

function onPointerMove(event) {

    if (isUserInteracting === true) {
        var clientX = event.clientX || (typeof(event.touches)!=='undefined'?event.touches[0].clientX:0);
        var clientY = event.clientY || (typeof(event.touches)!=='undefined'?event.touches[0].clientY:0);

        // lon = (onMouseDownMouseX - clientX) * 0.1 + onMouseDownLon;
        // lat = (clientY - onMouseDownMouseY) * 0.1 + onMouseDownLat;

        if(model==='full'){
            lon = (onMouseDownMouseX - clientX) * 0.075 + onMouseDownLon;
            lat = (clientY - onMouseDownMouseY) * 0.075 + onMouseDownLat;

        }else if(model==='menu'){

            const deltaX = (onMouseDownMouseX - clientX) * 0.031 
            const fromLeft = document.getElementById('menu').scrollLeft
            const toLeft = fromLeft + deltaX

            document.getElementById('menu').scrollLeft = toLeft

        }
    }

}

function onPointerUp() {

    isUserInteracting = false;

}

function onDocumentMouseWheel(event) {

    var fov = camera.fov + event.deltaY * 0.05;

    camera.fov = THREE.MathUtils.clamp(fov, 15, 75);

    camera.updateProjectionMatrix();

}

function IsPC(){  
    var userAgentInfo = navigator.userAgent;
    var Agents = new Array("Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod");  
    var flag = true;  
    for (var v = 0; v < Agents.length; v++) {  
        if (userAgentInfo.indexOf(Agents[v]) > 0) { flag = false; break; }  
    }  
    return flag;  
 }

//------------------------------------------


function onDbClickChange(event){
    
    const d = getCameraDirection()

    walkOn(d)
}

function getCameraDirection(){
    // camera.rotation.y  =Math.PI/2
    let min_angle = Math.PI
    let target_name = ""

    const cameraTarget = camera.target.normalize()
    
    for(const d in house.direction){
        const dat = new THREE.Vector3(house.direction[d].at.x,house.direction[d].at.y,house.direction[d].at.z).normalize()

        const angle = cameraTarget.angleTo(dat)
        if(min_angle>angle){
            min_angle = angle
            target_name = house.direction[d].name
        }
    }

    return target_name
}

function walkOn(d){
    let nextId = null
    switch(d){
        case 'L':
            nextId = house.src[house.idx].L
            break
        case 'R':
            nextId = house.src[house.idx].R
            break
        case 'F':
            nextId = house.src[house.idx].F
            break
        case 'B':
            nextId = house.src[house.idx].B
            break 
        case 'LF':
            nextId = house.src[house.idx].LF
            break 
        case 'LB':
            nextId = house.src[house.idx].LB
            break 
        case 'RF':
            nextId = house.src[house.idx].RF
            break 
        case 'RB':
            nextId = house.src[house.idx].RB
            break 
        default:
            break
    }

    if(nextId&&!house.isLoading){
        changeTexture(nextId)
    }else{
        moveNull()
    }
}

function changeTexture(nextId){

    const idx = getIdxFromId(nextId.id)

    house.numLoaded = 0
    house.isLoading = true
    // document.getElementById('tip').style.display = 'flex'

    updateFaceTexture(nextId,idx,'f')
    updateFaceTexture(nextId,idx,'b')
    updateFaceTexture(nextId,idx,'l')
    updateFaceTexture(nextId,idx,'r')
    updateFaceTexture(nextId,idx,'u')
    updateFaceTexture(nextId,idx,'d')

}

function updateFaceTexture(nextId,idx, face){

    const imgPath = house.src[idx].name +"4k_"+face+'.jpg'

    // load a resource
    loader.load(
        // resource URL
        imgPath,
        // onLoad callback
        function ( texture ) {

            house.numLoaded++

            updateFaceMaterial(texture,face)

            if(house.numLoaded===mesh.material.length){

                updateFaceCamera(texture,nextId,idx,face)
            }
        },
        // onProgress callback currently not supported
        undefined,
        // onError callback
        function ( err ) {
            console.error( 'An error happened.' );
        }
    );
}

function updateFaceMaterial(texture,face){
    for(let i=0;i<mesh.material.length;i++){
        if(mesh.material[i].name===face){
            mesh.material[i].map.dispose()
            mesh.material[i].map = texture
            mesh.material[i].map.needsUpdate = true;
            i=mesh.material.length
        }
    }
}


function updateFaceCamera(texture,nextId,idx,face){
    
    const coords = {x: camera.fov*35/20, y: lat,z:lon} // Start at (0, 0)
    const fov = camera.fov

    lat = nextId.angle.lat
    lon = nextId.angle.lon

    // for(let i=spotGroup.children.length-1;i>=0;i--){
    //     spotGroup.remove(spotGroup.children[i])
    // }  

    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:fov,y:nextId.angle.lat,z:nextId.angle.lon}, 1200) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .onUpdate((e,t) => {
            camera.fov = coords.x
            camera.updateProjectionMatrix();

        })
        .onComplete(()=>{
            house.nextId = nextId
            house.idx = idx

            camera.fov = fov
            camera.updateProjectionMatrix();

            house.isLoading = false
            // document.getElementById('tip').style.display = 'none'

            setHomePosition()

            

        })
        .start() // Start the tween immediately.
}

function range360(a){
    while(a>180){
        a -=360
    }
    while(a<-180){
        a +=360
    }
    return a
}

function defaultCameraFov(){

    let ilat = range360(lat)
    let ilon = range360(lon)

    const coords = {x: camera.fov, y: ilat,z:ilon} // Start at (0, 0)
    const fov = 45

    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:fov,y:0,z:0}, 1200) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .onUpdate((e,t) => {
            camera.fov = coords.x
            camera.updateProjectionMatrix();
            // lat = coords.y
            lon = coords.z
        })
        .onComplete(()=>{
            // house.nextId = nextId
            // house.idx = idx
            // camera.fov = fov
            // camera.updateProjectionMatrix();
            // house.isLoading = false
            // document.getElementById('tip').style.display = 'none'

        })
        .start() // Start the tween immediately.
}


// ------------- auto update material ------------
function autoLoadNextTexture(idx,face){

    const imgPath = house.src[idx].name +"_"+face+'.jpg'

    // for(let i=spotGroup.children.length-1;i>=0;i--){
    //     spotGroup.remove(spotGroup.children[i])
    // }  

    // load a resource
    loader.load(
        // resource URL
        imgPath,
        // onLoad callback
        function ( texture ) {

            house.numLoaded++

            updateFaceMaterial(texture,face)

            if(house.numLoaded===mesh.material.length){
                house.isLoading = false
                // document.getElementById('tip').style.display = 'none'

                lat = house.src[idx].view.lat
                lon = house.src[idx].view.lon

                setHomePosition()
            }
        },
        // onProgress callback currently not supported
        undefined,
        // onError callback
        function ( err ) {
            console.error( 'An error happened.' );
        }
    );
}

function autoUpdateMaterial(idx){

    house.numLoaded = 0
    house.isLoading = true
    // document.getElementById('tip').style.display = 'flex'

    autoLoadNextTexture(idx,'f')
    autoLoadNextTexture(idx,'b')
    autoLoadNextTexture(idx,'l')
    autoLoadNextTexture(idx,'r')
    autoLoadNextTexture(idx,'u')
    autoLoadNextTexture(idx,'d')

}

function updateCameraTo(fov){
    const coords = {x: camera.fov, y: 0} // Start at (0, 0)
    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:fov,y:0}, 600) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .delay(300)
        .onUpdate((e,t) => {
            camera.fov = coords.x
            camera.updateProjectionMatrix();
        })
        .onComplete(()=>{
        })
        .start() // Start the tween immediately.
}

function setHomePosition(){

    // const angle = house.src[house.idx].home.A
    const top = house.src[house.idx].home.T
    const right = house.src[house.idx].home.R

    document.getElementById('cam').style.top = top + 'px';
    document.getElementById('cam').style.right = right+ 'px';

    if(!isAutoPlay){
        updateMapPoint()
    }
}

function updateHome(){

    if(!house.isLoading){
        const offset = house.nextId!==null?house.nextId.offset:180
        const angle = lon + offset

        document.getElementById('cam').style.transform = 'rotate('+angle+'deg)';
    }
}

function moveNull(){

    const coords = {x: camera.fov, y: 0} // Start at (0, 0)
    const fov = camera.fov-5

    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:fov,y:0}, 400) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .onUpdate((e,t) => {
            camera.fov = coords.x
            camera.updateProjectionMatrix();
        })
        .onComplete(()=>{

            moveNullBack()
        })
        .start() // Start the tween immediately.
}

function moveNullBack(){
    lookZoom(5,400)
}

function lookZoom(z=5,t=600){
    const fromX = camera.fov
    const coords = {x: fromX, y: 0} // Start at (0, 0)
    const toX = camera.fov + z
    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:toX,y:0}, t) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .onUpdate((e,t) => {
            camera.fov = coords.x 
            camera.updateProjectionMatrix();
        })
        .start() // Start the tween immediately.
}

// direction 1/up 2/down 3/left 4/right
function lookDirection(d=1){
    const fromX = d===1||d===2?lat:lon
    const coords = {x: fromX, y: 0} // Start at (0, 0)
    const toX = d===1?lat-house.config.lat_step:d===2?lat+house.config.lat_step:d===3?lon-house.config.lon_step:lon+house.config.lon_step
    const tween = new TWEEN.Tween(coords) // Create a new tween that modifies 'coords'.
        .to({x:toX,y:0}, 600) // Move to (300, 200) in 1 second.
        .easing(TWEEN.Easing.Quadratic.Out) // Use an easing function to make the animation smooth.
        .onUpdate((e,t) => {
            if(d===1||d===2){
                lat = coords.x
            }else{
                lon = coords.x
            }
            
        })
        .start() // Start the tween immediately.
}


function updateMapPoint(){
    const idx = house.idx
    let id = -1
    var points=document.getElementById("redPoints");
    while (points.firstChild) {
        points.removeChild(points.firstChild);
    }
    // points.remove();
    if(house.src[idx].L){
        id = house.src[idx].L.id - 1
        createMapPoint(id)
    }
    if(house.src[idx].R){
        id = house.src[idx].R.id - 1
        createMapPoint(id)
    } 
    if(house.src[idx].F){
        id = house.src[idx].F.id - 1
        createMapPoint(id)
    }
    if(house.src[idx].B){
        id = house.src[idx].B.id - 1

        createMapPoint(id)
    } 
    if(house.src[idx].LF){
        id = house.src[idx].LF.id - 1

        createMapPoint(id)
    }
    if(house.src[idx].LB){
        id = house.src[idx].LB.id - 1

        createMapPoint(id)
    }
    if(house.src[idx].RF){
        id = house.src[idx].RF.id - 1

        createMapPoint(id)
    }
    if(house.src[idx].RB){
        id = house.src[idx].RB.id - 1
        createMapPoint(id)
    }
}


function createMapPoint(id){
    const top = house.src[id].home.T
    const right = house.src[id].home.R  
    
    const img=document.createElement("img");
    img.src="panos/redPoint.png";

    img.style.position = 'absolute'
    img.style.top = top +15+ 'px';
    img.style.right = right-5+ 'px';
    img.style.width = 8+ 'px';
    img.style.height = 8+ 'px';

    const points=document.getElementById("redPoints");

    points.appendChild(img);
}

function getIdxFromId(id){
    let idx = -1
    for(const item in house.src){
        if(house.src[item].id===id){
            idx = item
            break
        }
    }

    return idx
}


function animate() {
    requestAnimationFrame(animate);
    update();
}

function update() {

    // controls.update();
    if (isUserInteracting === false) {
        // lon += 0.1;
    }

    if(isAutoPlay){
        // if(lon>360&&!house.texture.isloading){
        if(lon>360&&!house.isloading){
            lon = 0
            // house.idx++
            // if(house.idx>=house.src.length){
            //     house.idx = 0
            // }
            house.playList.idx++
            if(house.playList.idx>=house.playList.orders.length){
                house.playList.idx = 0
            }

            for(let i in house.src){
                if(house.src[i].id===house.playList.orders[house.playList.idx].id){
                    house.idx = i
                    break
                }
            }

            // house.idx = house.playList.orders[house.playList.idx].id-1

            autoUpdateMaterial(house.idx)
        }else{
            lon += 0.2;
        }
    }

    lat = Math.max(-85, Math.min(85, lat));
    phi = THREE.MathUtils.degToRad(90 - lat);
    theta = THREE.MathUtils.degToRad(lon);

    camera.target.x = 512 * Math.sin(phi) * Math.cos(theta);
    camera.target.y = 512 * Math.cos(phi);
    camera.target.z = 512 * Math.sin(phi) * Math.sin(theta);

    updateHome()

    camera.lookAt(camera.target);

    TWEEN.update()

    renderer.render(scene, camera);

}



var btn = new tvSysBtnBind({
    id: "Jdoc",
    className: "ctrlBtn",
    currentClass: "current",
    keyRemoveDefault: false,
    effect: "base",
    currentIndex: 0,
    onLoad: function(e) {
    //   console.log(e);
    },
    onPress:function() {
        var keyCode = this.event.keyCode;
        // alert('keyCode:'+keyCode)
        document.getElementById('debug').innerHTML +="<br> onPress:" +keyCode

        switch (keyCode) {
            case 37: // left
            // reloadData();
            break;
            case 39: // right
            
            break;
            case 38: //up
            
            break;
            case 40: //down
            
            break;
            // case 13: //enter
            
            // break;
            case 33: //chanel +
            
            break;
            case 34: //chanel -
            
            break;
            case 48: //0
            
            break;
            default:
                break;
        }
    },
    onEnterPress: function() {

    },
    onBack: function() {

       if(isAutoPlay){
            isAutoPlay = false
       }else{
            if(model==='menu'){
                model = 'full'
                document.getElementById("menu").style.display='none';
                // document.getElementById("menuTip").style.display='none';
                // document.getElementById("menuTitle").style.display='none';
            }else{  
                  // window.location.href="index2.html?id="+house.idx
                const backurl = house.backurl

                const url = "pano3.html?id="+house.idx+'&backurl='+backurl

                console.log('url',url)

                document.getElementById('debug').innerHTML +="<br>" +url

                return;

                // window.location.replace(url)  
                // window.location.href = url  
                // VrBrowserToJS.vrBrowerExit()
            }
       }

       return;
    }
});


window.onBackEvent= function(){
    document.getElementById('debug').innerHTML +="<br>" +'window.onBackEvent'
}